Sino Machine Industries

Industries We Serve

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Valve Parts

Valve Parts and Castings — Precision Components and Custom Assemblies to Customer Specification

SMI manufactures valve parts and castings to customer drawing and technical specification — covering valve bodies, bonnet castings, valve blocks, pipe fittings and associated precision machined components. The majority of supply is cast and machined components for integration into the customer’s own valve assemblies. A smaller volume of complete custom valve assemblies is also produced where customers require a fully assembled and tested unit to their specification.

Materials span grey iron, ductile iron, carbon steel, stainless steel and brass — selected to the fluid handled, pressure rating, temperature and corrosion requirements of each application. Every component is produced to the customer’s own engineering drawing or specification, with dimensional inspection report and material certification supplied as standard.

Components and Assemblies Manufactured

Valve Body Castings

Cast valve bodies in grey iron, ductile iron, carbon steel and stainless steel — covering globe valves, gate valves, ball valves, butterfly valves and check valves in standard and custom configurations. Pressure-retaining wall thickness, bore dimensions, flange face machining and port geometry are produced to the customer’s engineering drawing and applicable pressure standard — ASME, EN, JIS or customer-specific.

Changeover and Directional Valve Bodies

Large-format changeover valve bodies and directional control valve castings — as shown in the gallery above — for industrial process and fluid power applications. Complex internal geometry, multiple port configurations and large flange faces require careful casting design and controlled machining to achieve the dimensional accuracy required for correct valve function. SMI’s casting and machining capability covers these more demanding geometries.

Duplex Valve Bodies

Duplex and multi-port valve body castings for applications requiring multiple flow paths in a single body — including duplex strainer bodies, duplex filter housings and multi-way valve bodies for marine, offshore and industrial process systems.

Hydraulic and Pneumatic Valve Blocks

Multi-port valve blocks and manifold bodies — cast and precision machined to the port layout, bore dimensions and pressure rating specified in the customer’s drawing. Both iron and brass valve blocks are shown in the gallery, covering industrial hydraulic and marine/fluid system applications respectively.

Pipe Elbows and Fittings

Cast pipe elbows, tees and reducers in grey iron, ductile iron and carbon steel — flanged or plain end configurations to customer drawing. Flange face machining and bore dimensions produced to ASME, EN or customer-specified standards.

Rotary Valve Casings

Large-format rotary valve body castings with dual flanged openings — for bulk material handling, industrial process and energy sector rotary valve applications. The complex geometry of rotary valve casings requires careful pattern design and controlled casting practice to achieve consistent wall thickness and accurate flange alignment.

Materials

Material Typical Application Notes
Grey iron General industrial valves, low to medium pressure Cost-effective for non-corrosive service
Ductile iron Higher pressure industrial and water service valves Improved impact resistance over grey iron
Carbon steel High pressure industrial and energy sector valves ASTM A216 WCB and equivalent grades
Stainless steel Corrosive fluid service, food and pharmaceutical CF8M and equivalent grades available
Brass / bronze Marine, seawater and potable water service Corrosion resistance for wet and marine environments
Customer-specified Special fluid or pressure requirements Material certification supplied as standard

Application Sectors

  • Oil and gas — upstream wellhead and manifold valves, downstream refinery and pipeline valves
  • Marine and offshore — seawater service valves, ballast and bilge systems, deck fittings and fire suppression systems
  • Power generation — steam and feedwater valves, cooling water systems and turbine auxiliary valves
  • Chemical and petrochemical processing — corrosive fluid service, high temperature and high pressure applications
  • Industrial hydraulics and pneumatics — valve blocks, manifolds and directional control valve bodies
  • Water and fluid handling — industrial process water, irrigation and fluid transfer systems

OEM and Custom Supply

SMI’s valve component manufacturing service is available to valve manufacturers, system integrators and industrial equipment OEMs requiring:

  • Casting to drawing — valve bodies and components produced to the customer’s pattern or 3D model
  • Machining to drawing — precision machining of cast components to the customer’s dimensional and tolerance specification
  • Complete valve assembly — fully assembled custom valve units to customer specification, available for customers requiring a complete assembly rather than individual components
  • Pressure testing — hydrostatic and pneumatic pressure testing to customer-specified test pressure and procedure
  • Quality documentation — dimensional inspection report, material certification, pressure test certificate as required
  • Spare parts supply — ongoing replacement component supply alongside new equipment orders

بالعربية — قطع الصمامات والمسبوكات حسب مواصفات العميل

تقوم SMI بتصنيع قطع الصمامات والمسبوكات وفقاً لرسومات العملاء والمواصفات التقنية — تشمل أجسام الصمامات، وصمامات التحويل، وأجسام الصمامات المزدوجة، وكتل الصمامات الهيدروليكية، وأغلفة الصمامات الدوارة، والمكونات المُشغَّلة بدقة. المواد تشمل الحديد الزهر والفولاذ الكربوني والفولاذ المقاوم للصدأ والنحاس الأصفر. للاستفسار، تواصل مع فريق SMI →

En Español — Componentes de Válvulas y Fundiciones según Especificación del Cliente

SMI fabrica componentes de válvulas y fundiciones según los planos y especificaciones técnicas del cliente — incluyendo cuerpos de válvulas, válvulas de cambio, cuerpos de válvulas dúplex, bloques de válvulas hidráulicas, carcasas de válvulas rotativas y componentes mecanizados de precisión. Los materiales incluyen hierro fundido, acero al carbono, acero inoxidable y latón. Para consultas, contacte al equipo de SMI →

Auf Deutsch — Ventilteile und Gussteile nach Kundenspezifikation

SMI fertigt Ventilteile und Gussteile nach Kundenzeichnung und technischer Spezifikation — einschließlich Ventilgehäuse, Umschaltventile, Doppelventilgehäuse, Hydraulikventilblöcke, Drehventilgehäuse und präzisionsbearbeitete Komponenten. Werkstoffe umfassen Grauguss, Kohlenstoffstahl, Edelstahl und Messing. Für Anfragen, kontaktieren Sie das SMI-Team →

Related Products — SMI Precision Castings and Machined Components

Request a Consultation

To discuss valve component casting and machining requirements, please provide the following at enquiry stage:

  • Component type — valve body, bonnet, valve block, pipe fitting or complete assembly
  • Material specification — grade and applicable standard
  • Pressure rating — design pressure, test pressure and applicable pressure standard
  • Key dimensions and weight — drawing preferred
  • Fluid handled — relevant to material selection and sealing requirements
  • Surface finish and treatment requirements
  • Annual volume — pieces per year
  • Quality documentation requirements — material cert, dimensional report, pressure test certificate

SMI will respond with a written technical assessment and commercial proposal. Contact SMI — Valve Parts Enquiry →

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Car & Truck Automatic Transmission Parts

Car & Truck Automatic Transmission Parts
An automatic transmission, also called auto, self-shifting transmission, n-speed automatic (where n is its number of forward gear ratios), or AT, is a type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually. Like other transmission systems on vehicles, it allows an internal combustion engine, best suited to run at a relatively high rotational speed, to provide a range of speed and torque outputs necessary for vehicular travel. The number of forward gear ratios is often expressed for manual transmissions as well (e.g., 6-speed manual).

A manual transmission, also known as a manual gearbox, stick shift, n-speed manual (where n is its number of forward gear ratios), standard, MT, or in colloquial U.S. English, a stick (for vehicles with hand-lever shifters), is a type of transmission used in motor vehicle applications. It uses a driver-operated clutch engaged and disengaged by a foot pedal (automobile) or hand lever (motorcycle), for regulating torque transfer from the engine to the transmission; and a gear selector operated by hand (automobile) or by foot (motorcycle).

A conventional 5-speed manual transmission is often the standard equipment in a base-model vehicle, while more expensive manual vehicles are usually equipped with a 6-speed transmission instead; other options include automatic transmissions such as a traditional automatic (hydraulic planetary) transmission (often a manumatic), a semi-automatic transmission, or a continuously variable transmission (CVT). The number of forward gear ratios is often expressed for automatic transmissions as well (e.g., 9-speed automatic).

Also we offer OEM/ODM truck & car parts. The truck & car parts including truck & car spare parts which Sino Machine Industry supplied were produced per customer’s drawings or specifications. All the parts are made in China. Chinese Castings Serving the Industrial Markets of the World.

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Pipe & Connection Fittings

A fitting is used in pipe systems to connect straight pipe or tubing sections, adapt to different sizes or shapes and for other purposes, such as regulating (or measuring) fluid flow. “Plumbing” is generally used to describe the conveyance of water, gas, or liquid waste in domestic or commercial environments; “piping” is often used to describe the high-performance (high-pressure, high-flow, high-temperature or hazardous-material) conveyance of fluids in specialized applications. “Tubing” is sometimes used for lighter-weight piping, especially that flexible enough to be supplied in coiled form.

Standard codes are followed when designing (or manufacturing) a piping system. Organizations which promulgate piping standards include:
ASME: American Society of Mechanical Engineers
A112.19.1 Enameled cast-iron and steel plumbing fixtures standards
A112.19.2 Ceramic plumbing fixtures standard
ASTM International: American Society for Testing and Materials
API: American Petroleum Institute
AWS: American Welding Society
AWWA: American Water Works Association
MSS: Manufacturers Standardization Society
ANSI: American National Standards Institute
NFPA: National Fire Protection Association
EJMA: Expansion Joint Manufacturers Association
CGA: Compressed Gas Association

Pipes must conform to the dimensional requirements of:
ASME B36.10M: Welded and seamless wrought-steel pipe
ASME B36.19M: Stainless-steel pipe
ASME B31.3 2008: Process piping
ASME B31.4 XXXX: Power piping
The B31.3 and B31.4 codes have requirements for piping found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants, and related processing plants and terminals. These codes specify requirements for materials and components, design, fabrication, assembly, erection, examination, inspection and testing of piping. The codes are applicable to piping for all fluids, including raw, intermediate and finished chemicals; petroleum products; gas, steam, air and water; fluidized solids; refrigerants, and cryogenic fluids.

The material with which a pipe is manufactured is often the basis for choosing a pipe. Materials used for manufacturing pipes include:
Carbon (CS) and galvanized steel
Impact-tested carbon steel (ITCS)
Low-temperature carbon steel (LTCS)
Stainless steel (SS)
Malleable iron
Non-ferrous metals (includes copper, inconel, incoloy and cupronickel)
Non-metallic (includes acrylonitrile butadiene styrene (ABS), fibre-reinforced plastic (FRP), polyvinyl chloride (PVC), high-density polyethylene (HDPE) and toughened glass)
Chrome-molybdenum (alloy) steel — Generally used for high-temperature service
The bodies of fittings for pipe and tubing are most often the same base material as the pipe or tubing connected: copper, steel, PVC, chlorinated polyvinyl chloride (CPVC) or ABS. Any material permitted by the plumbing, health, or building code (as applicable) may be used, but it must be compatible with the other materials in the system, the fluids being transported and the temperature and pressure inside (and outside) the system. Brass or bronze fittings are common in copper piping and plumbing systems. Fire hazards, earthquake resistance and other factors also influence the choice of fitting materials.

Also we offer OEM/ODM pipe & fitting parts. The pipe & fitting parts including spare parts which Sino Machine Industry supplied were produced per customer’s drawings or specifications. All the parts are made in China. Chinese Castings Serving the Industrial Markets of the World.

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Railway parts

Our main railway parts including:

Hand brake mechanism, Hand brake gearbox, Double brake shoe, Single brake shoe, Brake shoe (Welded type), Grill Handle, Manivela (Crowbar), Hand brake bar, Trangala handle, Portbale for loco engine, Hinge for wagon, Collector protect cap, Termik santral, Implant (Wagon), Elbow (Loco engine), Cap arm, Pinion side external gland cap, Hand brake gear, Bearing cap (Engine), Protecting cap (Engine), Hand wheel (Brake system), Pressure plate (Engine), End pivo (200kg), Suspension rod (60kg), Filter, Bottom locker tongue (Wagon), Upper bearing parts （Wagon bogie）, Bottom bearing parts (Wagon bogie), Handwhell, Pivot bearing, Sand injektor, Bogie center (upper bowl), Sustaint carrier, Crack control, Engine Flange, Engine Ring, Engine Flange Expansion, Off Plate, etc.

 

 

 

Driven gear material basically has 15 Crni6, 17 Crnimo6, 18 Crnimo7-6, 42 Crmo, etc; Forgings from 6kg to 1080kg in weight; Forgings from 164mm to 965mm diameter size; Ranging from the 54mm to 268mm height; Driven gear commonly used tire die forging; Production equipment is mainly 2T and 3T free forging hammer air-steam. Material for 18 crnimo7-6, Weight 1080Kg, Maximum 965mm outside diameter size, Height 268mm. To tire air and steam with the aid of 3T free forging hammer forging production.

Locomotive Driven Gear
Locomotive Driven Gear

Also we offer OEM/ODM railway parts. The railway parts including railway spare parts which Sino Machine Industries supplied were produced per customer’s drawings or specifications. All the parts are made in China. Chinese Castings Serving the Industrial Markets of the World.

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Machined Parts & Components

Machining is various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process. It almost always implies the use of machine tools (including power tools and hand tools).

Machining is a part of the manufacture of many metal products, but it also be used on materials such as wood, plastic, ceramic, and composites. Our most machining is carried out by computer numerical control (CNC), in which computers are used to control the movement and operation of the mills, lathes, and other cutting machines.

Also we offer OEM/ODM machined parts. The machined parts including spare parts which Sino Machine Industry supplied were produced per customer’s drawings or specifications. All the parts are made in China. Chinese Castings Serving the Industrial Markets of the World.

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Investment Castings

Standard Specifications:
ASTM, DIN, BS, Chinese GB

Component Photo Code:
Stainless & Carbon Steel Valves, Hydrants, Coupler & Bundles, Stainless Fittings, Non-ferrous Valve

Machining Capability:
To meet the diversified markets, we can further rough machine or finish machine the castings, forgings and other wrought materials to meet the requirements of our customers.

Typical Components For:
Pumps, Valve, Pipe fittings, Security locks, Washing machines, Boar hardware, Agricultural machinery, Automobile, Motorcycles & Bicycles, Weapon systems, Business machines.

Material:
Carbon & alloy steels, Stainless steels, Wear resistant steel (austenitic manganese steel), Ductile Iron

Melting Equipment:
Electric induction furnace

Surface Preparation:
Passivation, Polishing, Plating, Coating, Painting

Mold Medium:
Colloidal silica shell, Sodium silicate shell

The investment casting parts including spare parts which Sino Machine Industry supplied were produced per customer’s drawings or specifications. All the parts are made in China. Chinese Castings Serving the Industrial Markets of the World.